?Solar energy is one of the latest developing energy we are promoting. Today we would like to recommend this high-efficient solar panel to you. It adopts high quality and advanced technology， providing you stability and reliability and a long lifespan. Even in high temperature or low irradiance conditions， this solar panel can also function well. Featured with high transmittance and high conversion rate tempered glass， it is anti-aging and reliable. This solar panel is perfect enough to give you a satisfying performance!                                    Features             High cell efficiency with quality silicon materials for long term output stability and reliability<br> Strict quality control ensures the stability and reliability<br> Excellent performance in harsh weather<br> Outstanding electrical performance under high temperature and low irradiance conditions <br> High transmittance and low iron tempered glass with enhanced stiffness and impact resistance<br>                                                            Specifications             Maximum Power     20W    <br> Production Tolerance     ÷3%     <br> Maximum Power Voltage(Vmp)     18V    <br> Maximum Power Current (Imp)     1.11A    <br> Open Circuit Voltage (Voc)     21.06V　    <br> Short Circuit Current (Isc)     1.18A    <br> Maximum System Voltage     1000 V    <br> Solar Cell Efficiency     ◎17.5%    <br> Standard Test Condition     AM=1.5 E=1000W/쯓 Tc=25▲C    <br> Operating Temperature Range     -40→∥ +85→    <br> Cable Length     90cm    <br> Dimensions     (13.58 x20.47 x 0.1)" / (34.5 x52 x 0.25) cm    <br> Weight Per Piece     23.99oz / 680g     <br>                                                             Package Includes            1 x 20W 18V Semi-flexible Solar Panel Photovoltaic PV Poly-crystalline<br>